diff --git a/flake.nix b/flake.nix
index 59ce6fa..037efd4 100644
--- a/flake.nix
+++ b/flake.nix
@@ -77,6 +77,9 @@
         '';
       };
 
+      nixosModules.e11sync = import ./modules/e11sync;
+      nixosModules.default = self.nixosModules.e11sync;
+
       apps = {
         e11sync-frontend = {
           type = "app";
diff --git a/modules/e11sync/default.nix b/modules/e11sync/default.nix
new file mode 100644
index 0000000..6cce2d8
--- /dev/null
+++ b/modules/e11sync/default.nix
@@ -0,0 +1,14 @@
+{
+  config,
+  lib,
+  e11sync-backend,
+}: {
+  options.e11sync = with lib.types; {
+    enable = lib.mkEnableOption "Enable e11sync";
+    secretKeyPath = lib.mkOption {type = path;};
+  };
+
+  config = lib.mkIf config.e11sync.enable {
+    environment.systemPackages = [e11sync-backend];
+  };
+}